MOS场效应晶体管的栅极在允许条件下,最好接入保护晶体二极管,以防止场效应晶体管栅极击穿。c.集成电路和大功率器件的焊接方法。焊接电动自行车集成电路和大功率器件时,应先将拆卸过的电路板进行清洁,去掉焊渣,露出焊盘孔,然后将集成电路和大功率器件插入相应的位置。 The gate of the MOS field effect transistor is preferably protected by a protected crystal diode under permissive conditions to prevent the gate breakdown of the field effect transistor. c. Methods of soldering integrated circuits and high-power devices. When soldering electric bicycle integrated circuits and high-power devices, the disassembled circuit boards should be cleaned, the solder dross removed, the pad holes exposed, and the integrated circuits and high-power devices inserted into the corresponding locations.